A polyurethane adhesive coating device

Abstract

The utility model relates to a kind of polyurethane adhesive coating devices, comprising: roll assembly, the roll assembly includes roll body, first rotation axis, second rotation axis, the first rotation axis is connected to the one end of the roll body, the second rotation axis is connected to the other end of the roll body;Rack, the first rotation axis, the second rotation axis rotation is connected in the rack;Material basin, the material basin has accommodating groove, the roll body of roll assembly is located above the accommodating groove;And material basin lifting mechanism, material basin lifting mechanism includes rotating rod, second gear, rack gear, the second gear is installed on the rotating rod, gear is provided on the rack gear Gear structure, the second gear and the gear structure on the rack gear mesh, the rack gear is connected with the material basin, so that the second gear drives the rack lifting when the rotating rod rotates, so that the accommodating groove of the material basin is close to or away from the roll body.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, specifically to a polyurethane adhesive coating device. Background Technology

[0002] Polyurethane adhesives are a class of adhesive materials with polyurethane (PU) as the main chemical component. They achieve strong adhesion by forming strong physical and chemical forces between the polyurethane molecular chains and the surfaces of the materials being bonded. Their core properties stem from the urethane bonds in their molecular structure; however, through formulation design, ester bonds, ether bonds, urea bonds, etc., can be introduced to obtain a wide range of tunable properties.

[0003] Currently, when bonding materials, polyurethane adhesive is typically applied to the material surface using a roller, and then the materials are bonded together. Chinese utility model patent application number CN202322710088.3 discloses a polyurethane adhesive coating device aimed at improving bonding quality. This polyurethane adhesive coating device includes a mounting frame, a pouring frame, a cover plate, rollers, and a relief mechanism. The pouring frame is connected to the middle of the mounting frame, and the cover plate is slidably connected to the upper part of the pouring frame. Multiple rollers are rotatably connected to the lower part of the mounting frame, with the lower part of the pouring frame positioned between the rollers, forming a triangular structure. The mounting frame is equipped with a relief mechanism. This utility model rotates the rollers by pushing the mounting frame, and the rotation of the rollers applies the polyurethane adhesive to the material surface. The mutual compression and cooperation between the rollers control the amount of polyurethane adhesive flowing out of the pouring frame, achieving a more uniform application of the polyurethane adhesive to the material and improving bonding quality.

[0004] However, in this patent, the distance between the pouring frame and the roller remains constant. When the polyurethane adhesive in the pouring frame is insufficient to be picked up by the roller, new polyurethane adhesive must be poured into the pouring frame. However, after repeated cycles, the polyurethane adhesive at the bottom of the pouring frame ages, deteriorates, or undergoes a chemical reaction and loses its adhesiveness due to prolonged contact with the roller. Therefore, there is a need to invent a device that can adjust the distance between the pouring frame and the roller, allowing the pouring frame to be close to the roller so that the polyurethane adhesive at the bottom of the pouring frame can be picked up by the roller. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polyurethane adhesive coating device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a polyurethane adhesive coating device, comprising: A roller assembly, comprising a roller body, a first rotating shaft, and a second rotating shaft, wherein the first rotating shaft is connected to one end of the roller body, and the second rotating shaft is connected to the other end of the roller body; A frame, wherein the first rotating shaft and the second rotating shaft are rotatably connected to the frame; A material basin having a receiving groove, wherein the roller body of the roller assembly is located above the receiving groove; The material tray lifting mechanism includes a rotating rod, a second gear, and a rack. The second gear is mounted on the rotating rod, and the rack has a toothed structure. The second gear meshes with the toothed structure on the rack, and the rack is connected to the material tray. This allows the second gear to drive the rack to move up and down when the rotating rod rotates, thereby causing the material tray's receiving groove to move closer to or further away from the roller body.

[0007] Preferably, the material basin lifting mechanism further includes a worm gear, a worm, and a rotating wheel. The worm gear is mounted on the rotating rod, the worm meshes with the worm gear, and the rotating wheel is mounted together with the worm. This allows the rotating wheel to rotate, which in turn drives the worm to rotate, thereby driving the worm gear to rotate and causing the rotating rod to rotate.

[0008] Preferably, the material basin lifting mechanism further includes a transfer component, which is provided with a first through hole and a second through hole. The first through hole and the second through hole are both through the transfer component, and the axis of the first through hole is perpendicular to the axis of the second through hole, and the first through hole and the second through hole are connected. The second gear is placed in the first through hole, the rack is installed in the second through hole, and the rack can move in the second through hole.

[0009] Preferably, the roller assembly further includes a first bearing and a second bearing. The first bearing is mounted on the first rotating shaft and on the frame. The second bearing is mounted on the second rotating shaft and on the frame, thereby enabling the roller body to rotate relative to the frame.

[0010] Preferably, the system further includes a drive mechanism, which includes a motor, a first pulley, a second pulley, and a second rotating rod. The first pulley is mounted on the rotating shaft of the motor, thereby causing the motor to drive the first pulley to rotate. The second pulley is mounted on the second rotating rod, and the first pulley and the second pulley are connected by a belt, so that when the first pulley rotates, it drives the second pulley to rotate. The second rotating rod is rotatably connected to the frame.

[0011] Preferably, the driving mechanism further includes a first gear and a third gear. The first gear is mounted on the second rotating rod, and the third gear is mounted on the first rotating shaft of the roller assembly. The first gear meshes with the third gear, thereby causing the motor to drive the second pulley to rotate. The second pulley drives the second rotating rod to rotate, and the second rotating rod drives the first gear to rotate. Thus, when the third gear rotates, the roller body rotates.

[0012] The beneficial effects of this application are as follows: The polyurethane adhesive coating device provided by this application has the advantages of simple structure and easy assembly. Secondly, given that a material tray lifting mechanism is provided, the material tray lifting mechanism can adjust the distance between the material tray and the roller body. When the polyurethane adhesive in the material tray cannot be picked up by the roller body after a period of use, the material tray lifting mechanism is activated to force the material tray to move closer to the roller body, so that the roller body can pick up the polyurethane adhesive in the material tray again. Given that the material tray lifting mechanism is composed of a manually rotated wheel, a worm gear, and a gear transmission, the material tray has better stability and smoother lifting during the lifting process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a polyurethane adhesive coating device provided by the present invention.

[0014] Figure 2 Another structural schematic diagram of a polyurethane adhesive coating device provided by this utility model.

[0015] Figure 3 Another structural schematic diagram of a polyurethane adhesive coating device provided by this utility model.

[0016] Figure 4 for Figure 2 A magnified view of a polyurethane adhesive coating apparatus at point A.

[0017] Figure 5 for Figure 2 Another enlarged view of a polyurethane adhesive coating apparatus at point A.

[0018] Figure 6 A schematic diagram of the gear rod of the material tray lifting mechanism of a polyurethane adhesive coating device provided by this utility model. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0020] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0021] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0022] Please refer to Figure 1-6 This application provides a polyurethane adhesive coating apparatus (hereinafter referred to as "the coating apparatus"), which includes: Roller assembly 1, the roller assembly 1 includes roller body 11, first rotating shaft 12 and second rotating shaft 13, the first rotating shaft 12 is connected to one end of roller body 11 and the second rotating shaft 13 is connected to the other end of roller body 11; The frame 2, the first rotating shaft 12 and the second rotating shaft 13 are rotatably connected to the frame 2; The material basin 4 has a receiving groove 40, and the roller body 11 of the roller assembly 1 is located above the receiving groove 40. The material tray lifting mechanism 5 includes a rotating rod 55, a second gear 58, and a rack 57. The second gear 58 is mounted on the rotating rod 55, and the rack 57 has a toothed structure 570. The second gear 58 meshes with the toothed structure 570 on the rack 57. The rack 57 is connected to the material tray 4, so that when the rotating rod 55 rotates, the second gear 58 drives the rack 57 to rise and fall, thereby causing the receiving groove 40 of the material tray 4 to move closer to or away from the roller body 11. Thus, when the polyurethane adhesive in the receiving groove 40 of the material tray 4 is insufficient to be picked up by the roller body 11, the material tray lifting mechanism 5 is activated, and the rotating rod 55 is rotated, causing the rack 57 to move the material tray 4 closer to the roller body 11. When the material tray 4 reaches a preset position, the roller body 11 can again pick up the polyurethane adhesive in the receiving groove 40 of the material tray 4.

[0023] Please refer to some embodiments of this application. Figure 1-6 The material container lifting mechanism 5 further includes a worm gear 54, a worm 52, and a rotating wheel 51. The worm gear 54 is mounted on the rotating rod 55, the worm 52 meshes with the worm gear 54, and the rotating wheel 51 is mounted together with the worm 52. Rotating the rotating wheel 51 drives the worm 52 to rotate, which in turn drives the worm gear 54 to rotate, thus causing the rotating rod 55 to rotate. By manually rotating the rotating wheel 51, the rotating rod 55 is driven to rotate, which in turn drives the second gear 58 to rotate. The second gear 58 drives the rack 57 to rise and fall, thereby achieving the lifting and lowering of the material container 4. Furthermore, the rotation of the worm 52 can be manually controlled, allowing the lifting and lowering of the material container 4 to be determined according to needs, greatly improving flexibility.

[0024] Please refer to some embodiments of this application. Figure 1-6 The material container lifting mechanism 5 further includes a transfer component 56, which has a first through hole 561 and a second through hole 562. Both the first through hole 561 and the second through hole 562 are through the transfer component 56, and the axis of the first through hole 561 is perpendicular to the axis of the second through hole 562, and the first through hole 561 and the second through hole 562 are connected. A second gear 58 is placed in the first through hole 561, and a rack 55 is installed in the second through hole 562, and the rack 55 can move within the second through hole 562. Thus, when the rotating rod 55 rotates, the second gear 58 drives the rack 55 to rise or fall, thereby raising or lowering the material container 4. In this application, the diameter of the first through hole 561 is larger than the diameter of the second through hole 562.

[0025] Please refer to some embodiments of this application. Figure 1-6The roller assembly 1 further includes a first bearing 14 and a second bearing 15. The first bearing 14 is mounted on both the first rotating shaft 12 and the frame 2. The second bearing 15 is mounted on both the second rotating shaft 13 and the frame 2, thereby enabling the roller body 11 to rotate relative to the frame 2. In this application, the first rotating shaft 12 and the first bearing 14 can be connected together by a key or an interference fit. Similarly, the second rotating shaft 13 and the second bearing 15 can be connected together by a key or an interference fit. The first rotating shaft 12, the second rotating shaft 13, and the roller body 11 can be connected together by welding or integral molding.

[0026] Please refer to some embodiments of this application. Figure 1-6 The coating apparatus further includes a drive mechanism 3, which comprises a motor 31, a first pulley 32, a second pulley 34, and a second rotating rod 35. The first pulley 32 is mounted on the rotating shaft of the motor 31, thereby causing the motor 31 to drive the first pulley 32 to rotate. The second pulley 34 is mounted on the second rotating rod 35, and the first pulley 32 and the second pulley 34 are connected by a belt (not shown in the figure), thereby causing the second pulley 34 to rotate when the first pulley 32 rotates. The second rotating rod 35 is rotatably connected to the frame 2. Although in this application... Figure 1-6 The structure of the belt is not shown, but those skilled in the art will know that a belt is a transmission belt, the purpose of which is to transmit power so that the motor 31 drives the second pulley 34 to rotate.

[0027] Please refer to some embodiments of this application. Figure 1-6 The drive mechanism 3 further includes a first gear 36 and a third gear 37. The first gear 36 is mounted on the second rotating rod 35, and the third gear 37 is mounted on the first rotating shaft 12 of the roller assembly 1. The first gear 36 and the third gear 37 mesh, thereby causing the motor 31 to drive the second pulley 34 to rotate. The second pulley 34 drives the second rotating rod 35 to rotate, and the second rotating rod 35 drives the first gear 36 to rotate. This drives the third gear 37 to rotate, which in turn drives the roller body 11 to rotate. In this way, when the roller body 11 rotates, it picks up the polyurethane adhesive from the receiving groove 40 of the material basin 4.

[0028] The polyurethane adhesive coating device provided in this application has the advantages of simple structure and easy assembly. Secondly, given that a material tray lifting mechanism is provided, the material tray lifting mechanism can adjust the distance between the material tray and the roller body. When the polyurethane adhesive in the material tray cannot be picked up by the roller body after a period of use, the material tray lifting mechanism is activated to force the material tray to move closer to the roller body, so that the roller body can pick up the polyurethane adhesive in the material tray again. Given that the material tray lifting mechanism is composed of a manually rotated wheel, a worm gear, and a gear transmission, the material tray has better stability and smoother lifting during the lifting process.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A polyurethane adhesive coating apparatus, characterized in that, include: A roller assembly, comprising a roller body, a first rotating shaft, and a second rotating shaft, wherein the first rotating shaft is connected to one end of the roller body, and the second rotating shaft is connected to the other end of the roller body; A frame, wherein the first rotating shaft and the second rotating shaft are rotatably connected to the frame; A material basin having a receiving groove, wherein the roller body of the roller assembly is located above the receiving groove; The material tray lifting mechanism includes a rotating rod, a second gear, and a rack. The second gear is mounted on the rotating rod, and the rack has a toothed structure. The second gear meshes with the toothed structure on the rack, and the rack is connected to the material tray. This allows the second gear to drive the rack to move up and down when the rotating rod rotates, thereby causing the material tray's receiving groove to move closer to or further away from the roller body.

2. The coating apparatus according to claim 1, characterized in that, The material basin lifting mechanism also includes a worm gear, a worm, and a rotating wheel. The worm gear is mounted on the rotating rod, the worm meshes with the worm gear, and the rotating wheel is mounted together with the worm. This allows the rotating wheel to rotate, which in turn drives the worm to rotate, thereby driving the worm gear to rotate, which in turn causes the rotating rod to rotate.

3. The coating apparatus according to claim 2, characterized in that, The material basin lifting mechanism further includes a transfer component, which is provided with a first through hole and a second through hole. The first through hole and the second through hole are both through the transfer component, and the axis of the first through hole is perpendicular to the axis of the second through hole, and the first through hole and the second through hole are connected. The second gear is placed in the first through hole, the rack is installed in the second through hole, and the rack can move in the second through hole.

4. The coating apparatus according to claim 1, characterized in that, The roller assembly further includes a first bearing and a second bearing. The first bearing is mounted on the first rotating shaft and on the frame. The second bearing is mounted on the second rotating shaft and on the frame, thereby enabling the roller body to rotate relative to the frame.

5. The coating apparatus according to claim 1, characterized in that, It also includes a drive mechanism, which includes a motor, a first pulley, a second pulley, and a second rotating rod. The first pulley is mounted on the rotating shaft of the motor, so that the motor drives the first pulley to rotate. The second pulley is mounted on the second rotating rod, and the first pulley and the second pulley are connected by a belt, so that when the first pulley rotates, it drives the second pulley to rotate. The second rotating rod is rotatably connected to the frame.

6. The coating apparatus according to claim 5, characterized in that, The drive mechanism further includes a first gear and a third gear. The first gear is mounted on the second rotating rod, and the third gear is mounted on the first rotating shaft of the roller assembly. The first gear meshes with the third gear, thereby causing the motor to drive the second pulley to rotate. The second pulley drives the second rotating rod to rotate, and the second rotating rod drives the first gear to rotate. Thus, when the third gear rotates, the roller body rotates.

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